William conquest



. GONQUBS Patented July 26,- 1887.

- n nrtnwdwmmlr.

Y FOLDING ROLLER POB. PAPER FOLDIING MACHINES. i N0. 367,352.

(No Model.)

we Q :P A. Y

UNITED STATES PATENT OFFICE.

lVILLIAM CONQUEST, OF LONDON, COUNTY OF MIDDLESEX, ENGLAND,

ASSIGNOR TO R. HOE 8U OO., OF NE\V YORK, N. Y.

FOLDING-ROLLER FOR PAPER-FOLDING MACH-INES..

SPECIFCATION forming part of Letters Patent No. 367,352, dated July 26, 1887.

Application led June 7, 1F84. Serial No. l3l,238. (No model.) Patmted in England Oetober3h1881, No. 4,763.

vthe folding-rollers7 and into the bite of a pair of which rollers the material to be creased or folded is tucked by a blade projected between said rollers.

In the operation of folding-rollers `as here tofore constructed, whether made with polished metal-surfaces or draw-filed surfaces, or

wooden roller,or roll-ers composed of wooden cores covered with felt, it sometimes happens that they either fail to grip the sheet tucked vinto their bite by the folding-blade or only grip one side ofthe sheet, resulting in the first instance in the failure to fold the sheet and in the other in delivering the sheet slightly askew, so that it runs out of its proper path.

The object of this invention is to make the action of the folding-rollers in carrying off the sheet or sheets of paper that are tucked into them by the folding-blade more positive than heretofore, and thus avoid the defects andinconveniences above mentioned. To ythis end each folding-roller is provided with elastic rings of such diameter that they will pro-A ject slightly beyond'the surface of the roller, so that when two companion rollers are placed inworking position their elastic rings only will touch. rlhere will thus be a space between the rollers eXtendingV from ring to ring in their length, into which the folding-blade may tuck the sheet without pressing against the metal rollers. The folding-blade is made to penetrate a little beyond the breast of the rollers, for which purpose it is cutaway where it would meet the rings. rlhe sheets are thus tucked positively into the bite of the elastic rings, and vby them is carried forward to receive the next fold or to he' delivered.

shafts A A, as usual.

In the accompanying drawings, Figure 1 is a longitudinal section of va folding-roller and its folding-blade, and shows one method of constructing the same according to this invention. Fig. 2'is a similar view of a foldingroller, showing another mode of applying this invention thereto. of a pair or companion rollers as if taken on lines corresponding, respectively, to the lines rv x and g/ g/ of Fig. 1.

The folding-rollers B B are mounted on These rollers may be cast in one piece, as in Fig. 1, or in short lengths, as in Fig. 2. Then a rolleris cast in one piece, it is preferable to make it at different parts in its length of greater thicknessy than at others, so that peripheral grooves a may be turned in the thicker parts, as fully shown in Fig. 1. Into these grooves, of which there may be two, three, or more in the length of 4the roller, elastic rings b b are sprung. These rings, which I prefer shall be of vulcanized india-rubber, are of somewhat greater externa-l diameter than the roller to which theyare to be fitted, so that when two rollers thus fitted with rings are placed together their rings only shall touch the space left between the metal rollers being about equal to or slightly in excess of the thickness -of the folding-blade.

The folding-blade C is notched, as at c, (see Fig. 1,) to allow of the blade clearing the rings when descendingV between the rollers, and thus insuring that the .rings shall take hold of the creased material or sheet to carry the same forward. Vhen the folding-rollers are constructed of short lengths, an elastic disk, d, is placed between adjacent lengths, as shown at the right hand of Fig. 2.

. The folding-roller may consist of two lengths of roller, which is thepreferred form, in which case a combination of elastic rings b and elastic disks d is employed, as shown in Fig. 2. In this form the castings, beng shorter than in thearrangement shown in Fig. 1, are more 9 likely to be true, and therefore the labor of turning up will be materially diminished.

V'Vhat is claimed ish-- 1. The combination, with the foldingrollers of folding-machines, of elastic gripping-bear- Fig. 3 is a cross-section IOO ings, as b (7l, projecting beyond the general surface of the rollers7 substantially as shown and deserbed.

2. In n folding-nmelline7 foldingf-1olle1s eonsbrueted in sections, with interposed disks of elastic material projecting beyond the general surface of seid rollers, substantially ns described.

n testimony whereof have hereunto set my hand in the presence of twosubsoribng wit- 1o HCSSQSA \Vi t messes:

Cms. Crus.

"WILLIAM CONQUEST.

W. CARPENTER, E. Hovenmss. 

